CN100340370C - Alloy powder for laser restoration of engine blade casting defect, its manufacturing method and application - Google Patents
Alloy powder for laser restoration of engine blade casting defect, its manufacturing method and application Download PDFInfo
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- CN100340370C CN100340370C CNB2005102000100A CN200510200010A CN100340370C CN 100340370 C CN100340370 C CN 100340370C CN B2005102000100 A CNB2005102000100 A CN B2005102000100A CN 200510200010 A CN200510200010 A CN 200510200010A CN 100340370 C CN100340370 C CN 100340370C
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Abstract
The present invention relates to alloy powder for the laser repair of the casting defects of blades of an engine, a manufacturing method and an application. The alloy powder is made of mixed alloy powder, a modifier and rare earth Y2 O3. The present invention has the core that rare earth oxide and the modifier are simultaneously added into the laser cladding alloy powder to improve the crystalline state of cladding so that the cracking sensibility of the cladding is considerably reduced. When the alloy powder is adopted for the laser repair of blades with casting defects, the blades have no crack or hole after the laser repair. Thus, the alloy powder is particularly suitable for the repair of blades of an aviation engine.
Description
Technical field: the present invention is a kind of alloy powder for laser restoration of engine blade casting defect and method for making and application, the alloy powder repaired especially for blade of aviation engine casting flaw laser melting coating and preparation method thereof and its application belong to the field of metallurgical technology.
Background technology: at present, the alloy powder that the laser melting coating reblading uses mostly is employed Co-based alloy powder of thermal spraying and Co-based alloy powder, because the physical chemistry compatibility and the engine blade of this powder of two types differ greatly, so be easy to generate crackle in the laser cladding process, defectives such as hole are because the effect of repairing is poor; So for engine aero-engine particularly, such technology obviously sees it is not on your life from safe and reliable angle.
Summary of the invention: the objective of the invention is to: a kind of alloy powder for laser restoration of engine blade casting defect and method for making and application are provided, core of the present invention is to add rare earth oxide and alterant in the cladding alloy powder simultaneously, improve the crystalline state of cladding layer, thereby greatly reduce the cracking sensitivity of cladding layer.
The present invention constitutes like this: the alloy powder of engine blade casting flaw laser melting coating reparation usefulness: calculate according to components by weight percent: by alloy powder, alterant 3-5 part and the Rare Earth Y of 93.3-95.7 part mixing
2O
31.3-1.7 part is prepared from, the alloy powder that mixes is: with 100 listed as parts by weight: wherein contain C 0.15-0.21, Cr 8.8-9.2, Co 9.8-10.2, Mo 2.8-3.2, Al 4.8-5.2, Ti 4.2-4.6, Fe 0.04-0.08, V 0.7-0.9, Zr 0.06-0.08, surplus is Ni, alterant is with 100 listed as parts by weight: contain wherein that KCL 8-15 part, NaCL 50-65 part, NaF 20-27 part and Si 2-6 part makes.
Specifically: calculate: by 4 kilograms of alloy powder, alterants and the Rare Earth Y of 94.5 kilograms of mixing according to weight
2O
31.5 kilogram is prepared from, the alloy powder that mixes is: 8.8 kilograms of 0.18 kilogram of C, Cr, 2.8 kilograms of 9.8 kilograms of Co, Mo, 4.4 kilograms of 5 kilograms of Al, Ti, 0.8 kilogram of 0.06 kilogram of Fe, V, 0.07 kilogram of Zr, surplus are Ni, alterant then is the commercially available prod, wherein contains KCL 12.4896, NaCL 59.52%, NaF 24%, Si 4%.
The manufacture method of this alloy powder: weigh up the weight of various alloy powders in prescription and ratio, grind then and make it abundant mixing, mix the back and add Y
2O
3, grinding makes it to mix with alloy powder again, adds alterant at last and grinds, and makes product.The time of Yan Moing is 2-3 hour in the method; We find that the long then production cost of milling time increases, reduces benefit, but short then these metal dusts of milling time can not mix fully, do not produce best result of use again.The application of the alloy powder of this engine blade casting flaw laser melting coating reparation usefulness: the alloy powder that makes is placed the engine blade casting flaw position that needs reparation, at laser output power P=1.2-1.8KW, scan velocity V=180-260mm/min, under the condition of spot size d=3-5mm, the blade that casting flaw is arranged is carried out laser repairing.Reasonable application conditions is: the alloy powder that makes is placed the engine blade casting flaw position that needs reparation, at laser output power P=1.5KW, scan velocity V=220mm/min under the condition of spot size d=3mm, carries out laser repairing to the blade that casting flaw is arranged.
Compared with prior art, adopt patent of the present invention to carry out the blade that laser repairing has casting flaw, through laser repairing rear blade flawless, hole, reason is after the adding alterant that provides, improved the melting efficiency of alloy powder, can shorten the heat transfer time, helped reducing the amount of heat absorption of parent metal to parent metal; The heat transfer alterant since the little meeting of density from liquid alloy, overflow automatically and take away heat, make interface place matrix hot input quantity reduce, make the hot cracking tendency reduction of cladding layer itself; The come-up motion of heat transfer alterant distributes favourable to crystalline state and the thermodynamics that improves cladding layer; The present invention adds rare earth oxide and alterant simultaneously in the cladding alloy powder, improved the crystalline state of cladding layer, thereby greatly reduces the cracking sensitivity of cladding layer; The present invention through the application conditions that repeatedly experiment draws this product is in addition: the alloy powder that makes is placed needs the engine blade casting flaw position of repairing, at laser output power P=1.5KW, scan velocity V=220mm/min, under the condition of spot size d=3mm, carry out laser repairing.
The specific embodiment:
Embodiments of the invention 1: the alloy powder of engine blade casting flaw laser melting coating reparation usefulness, by 4 kilograms of alloy powder, alterants and the Rare Earth Y of 94.5 kilograms of mixing
2O
31.5 kilogram is prepared from, the alloy powder that mixes is: 8.8 kilograms of 0.18 kilogram of C, Cr, 2.8 kilograms of 9.8 kilograms of Co, Mo, 4.4 kilograms of 5 kilograms of Al, Ti, 0.8 kilogram of 0.06 kilogram of Fe, V, 0.07 kilogram of Zr, surplus are Ni, alterant then is the commercially available prod, wherein contains KCL 12.48%, NaCL 59.52%, NaF 24%, Si 4%.Weigh up the weight of various alloy powders in prescription and ratio, grind then and made it abundant mixing in 2 hours, mix the back and add Y
2O
3, grinding makes it to mix with alloy powder again, adds alterant at last and grinds 2 hours, makes product.
The alloy powder that makes is placed the engine blade casting flaw position that needs reparation, and at laser output power P=1.5KW, scan velocity V=220mm/min under the condition of spot size d=3mm, carries out laser repairing.
Embodiments of the invention 2: calculate: by 3 kilograms of alloy powder, alterants and the Rare Earth Y of 95.7 kilograms of mixing according to components by weight percent
2O
31 .3 kilogram is prepared from, the alloy powder that mixes is: with 100 listed as parts by weight: wherein contain 0.06 part of 0.7 part of 0.04 part of 4.2 parts of 4.8 parts of 3.0 parts of 10.0 parts of 9 parts of 0.15 part of C, Cr, Co, Mo, Al, Ti, Fe, V, Zr, surplus is Ni, alterant is with 100 listed as parts by weight: contain wherein that 2 parts of 20 parts of 50 parts of 8 parts of KCL, NaCL, NaF and Si make.Weigh up the weight of various alloy powders in prescription and ratio, grind then and made it abundant mixing in 3 hours, mix the back and add Y
2O
3, grinding makes it to mix with alloy powder again, adds alterant at last and grinds 3 hours, makes product.The alloy powder that makes is placed the engine blade casting flaw position that needs reparation, and at laser output power P=1.2KW, scan velocity V=180mm/min under the condition of spot size d=3mm, carries out laser repairing.
Embodiments of the invention 3: calculate: by 5 kilograms of alloy powder, alterants and the Rare Earth Y of 93.3 kilograms of mixing according to weight
2O
31.7 kilogram is prepared from, the alloy powder that mixes is: with 100 listed as parts by weight: wherein contain 0.08 part of 0.9 part of 0.08 part of 4.6 parts of 5.2 parts of 3.2 parts of 10.2 parts of 9.2 parts of 0.21 part of C, Cr, Co, Mo, Al, Ti, Fe, V, Zr, surplus is Ni, alterant is with 100 listed as parts by weight: contain wherein that 6 parts of 27 parts of 65 parts of 15 parts of KCL, NaCL, NaF and Si make.Weigh up the weight of various alloy powders in prescription and ratio, grind then and made it abundant mixing in 2.5 hours, mix the back and add Y
2O
3, grinding makes it to mix with alloy powder again, adds alterant at last and grinds 2.5 hours, makes product.
The alloy powder that makes is placed the engine blade casting flaw position that needs reparation, and at laser output power P=1.8KW, scan velocity V=260mm/min under the condition of spot size d=5mm, carries out laser repairing.The alterant that uses among the present invention is the commercially available prod, can purchase in market.
Claims (6)
1. the alloy powder of engine blade casting flaw laser melting coating reparation usefulness is characterized in that: calculate according to components by weight percent: by alloy powder, alterant 3-5 part and the Rare Earth Y of 93.3-95.7 part mixing
2O
31.3-1.7 part is prepared from, the alloy powder that mixes is: with 100 listed as parts by weight: wherein contain C0.15-0.21, Cr8.8-9.2, Co9.8-10.2, Mo2.8-3.2, Al4.8-5.2, Ti4.2-4.6, Fe0.04-0.08, V0.7-0.9, Zr0.06-0.08, surplus is Ni, alterant is with 100 listed as parts by weight: contain wherein that KCL8-15 part, NaCL50-65 part, NaF20-27 part and Si2-6 part makes.
2. according to the alloy powder of the described engine blade casting flaw of claim 1 laser melting coating reparation usefulness, it is characterized in that: calculate: by 4 kilograms of alloy powder, alterants and the Rare Earth Y of 94.5 kilograms of mixing according to weight
2O
31.5 kilogram is prepared from, the alloy powder that mixes is: C0.18 kilogram, Cr8.8 kilogram, Co9.8 kilogram, Mo2.8 kilogram, Al5 kilogram, Ti4.4 kilogram, Fe0.06 kilogram, V0.8 kilogram, Zr0.07 kilogram, surplus are Ni, alterant then is the commercially available prod, wherein contains KCL12.48%, NaCL59.52%, NaF24%, Si4%.
3. the method for making of the alloy powder of engine blade casting flaw laser melting coating reparation usefulness as claimed in claim 1 or 2 is characterized in that: weigh up the weight of various alloy powders in prescription and ratio, grind then and make it abundant mixing, mix the back and add Y
2O
3, grinding makes it to mix with alloy powder again, adds alterant at last and grinds, and makes product.
4. according to the method for making of the alloy powder of the described engine blade casting flaw of claim 3 laser melting coating reparation usefulness, it is characterized in that: the time of grinding is 2-3 hour.
5. the application of the alloy powder of engine blade casting flaw laser melting coating reparation usefulness as claimed in claim 1 or 2, it is characterized in that: the engine blade casting flaw position that the alloy powder that makes is placed the needs reparation, at laser output power P=1.2-1.8KW, scan velocity V=180-260mm/min, under the condition of spot size d=3-5mm, carry out laser repairing.
6. according to the application of the alloy powder of the described engine blade casting flaw of claim 5 laser melting coating reparation usefulness, it is characterized in that: the engine blade casting flaw position that the alloy powder that makes is placed the needs reparation, at laser output power P=1.5KW, scan velocity V=220mm/min, under the condition of spot size d=3mm, carry out laser repairing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005102000100A CN100340370C (en) | 2005-01-06 | 2005-01-06 | Alloy powder for laser restoration of engine blade casting defect, its manufacturing method and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005102000100A CN100340370C (en) | 2005-01-06 | 2005-01-06 | Alloy powder for laser restoration of engine blade casting defect, its manufacturing method and application |
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| CN1631603A CN1631603A (en) | 2005-06-29 |
| CN100340370C true CN100340370C (en) | 2007-10-03 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054667B (en) * | 2007-05-17 | 2010-07-07 | 贵州光谷海泰激光技术有限公司 | Material for repairing high-hardness engine member abandonment die by laser and application thereof |
| CN102031519B (en) * | 2011-01-12 | 2012-01-11 | 唐山瑞兆激光技术机械修复有限公司 | Laser repair method for abraded centrifugal fan bearing block |
| CN105081612B (en) * | 2015-09-22 | 2017-03-08 | 山东大学 | A kind of plasma arc surfacing alloy powder for hot-work die |
| CN109351958A (en) * | 2017-12-25 | 2019-02-19 | 宁波中物东方光电技术有限公司 | For the alloy powder of potassium steel surface reconditioning and its preparation, application method |
| CN113681012A (en) * | 2021-08-24 | 2021-11-23 | 江苏拜欧尼克智能科技有限公司 | Method for repairing hole defects of cast cylinder block by laser |
| CN114318064A (en) * | 2021-12-29 | 2022-04-12 | 河南机电职业学院 | Nickel-based metal powder, and repair method and application of turbine blade |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1026219C (en) * | 1992-05-20 | 1994-10-19 | 中国科学院金属腐蚀与防护研究所 | Technology of laser contour melting cast for surface treatment of aerial blade |
| EP1029629A2 (en) * | 1999-02-17 | 2000-08-23 | EUROMAT Gesellschaft für Werkstofftechnologie und Transfer mbH | Process for applying a protective coating on the surface of workpieces; alloy and solder used therefor |
| CN1322892A (en) * | 2000-05-10 | 2001-11-21 | 中国科学院金属研究所 | Laser cladding process for crown damping surface of crowned gas turbine blade |
| US6495793B2 (en) * | 2001-04-12 | 2002-12-17 | General Electric Company | Laser repair method for nickel base superalloys with high gamma prime content |
| KR20040057531A (en) * | 2002-12-26 | 2004-07-02 | 두산중공업 주식회사 | The sealing repair process for the leaks in the water clips of water cooled the stator bars of the turbine generator |
-
2005
- 2005-01-06 CN CNB2005102000100A patent/CN100340370C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1026219C (en) * | 1992-05-20 | 1994-10-19 | 中国科学院金属腐蚀与防护研究所 | Technology of laser contour melting cast for surface treatment of aerial blade |
| EP1029629A2 (en) * | 1999-02-17 | 2000-08-23 | EUROMAT Gesellschaft für Werkstofftechnologie und Transfer mbH | Process for applying a protective coating on the surface of workpieces; alloy and solder used therefor |
| CN1322892A (en) * | 2000-05-10 | 2001-11-21 | 中国科学院金属研究所 | Laser cladding process for crown damping surface of crowned gas turbine blade |
| US6495793B2 (en) * | 2001-04-12 | 2002-12-17 | General Electric Company | Laser repair method for nickel base superalloys with high gamma prime content |
| KR20040057531A (en) * | 2002-12-26 | 2004-07-02 | 두산중공업 주식회사 | The sealing repair process for the leaks in the water clips of water cooled the stator bars of the turbine generator |
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| CN1631603A (en) | 2005-06-29 |
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